US477832A - Spool-rdughing machine - Google Patents

Description

(No Model.) 3 Sheets--Sheet 1. J. M. BROWN. SPOOL ROUGHING MACHINE.

No. 477,832. Patented June 28, 1892.

w E L Witnesses ms Nonms PETERS cu, mom-mum, WASHING-row, n. c.

2 t e e h S mu 8 e h S 3 w 0 R B M J m d o M 0 W SPOOL ROUGHING MACHINE.

No. 477,832. Patented June 28, 1892.

Inventor: Jsae fiflBro wr o M5 Wnesses Tins co., Pnn'mLrq-m, wAaHmuTou o c fifiunr t e e h S S t e e h s 3 N O R B M U- A d O M 0 m SPOOL. ROUGHING MACHINE. No. 47?;832.

Patented J ne 28, 1-892.'

Witnesses Inventor,

' Jzisse JKTBT'OW J flztor ma mums PETERS 420., wow-mum, WASNINGTCIN, n. c.

PA-TENT: QFFIG JESSE M. BROWN, OF BETHEL, MAINE.

SPOOL-RdUGHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 477,832, dated June 28, 1892. Application filed November 11, 1890. Serial No. 371,110- (No model.)

To all whom it may concern:

Be it known that LJESSE M. BROWN, residing at 'Bethel,inrthe 'county of Oxford and State of Maine, have invented certain new and usefullmprove'm entsin Spool-Roughing Machines; andI do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

Figure 1 isa side view of my newly-organized machine for wood-spool roughing. Fig. 2 showsatop plan of the same. Fig. 3 represents a detail of the saw-carriage. Fig. 4 is'a detailof the mechanisms for actuating the spool-bar jaws and feed.

In the different figuresof the drawing the same reference characters, point out corresponding parts.

This invention has reference to that particular class of Vwoodworkingmachines commonly known and designated in the shops and mills as spool-r011 ghin g machines.,thatis to say, machines for turning or forming rough spool-blanks.

"In one method of roughing wood-spools the ordinarypractice has been for the operator holding the spool-bar in his-hand, first, to present the end of the bar to a proper turningtool; second, to a centering or boringtool, and, third, to a saw for cutting off the turnedand centered endof the spool-bar. This method ofmanufacturing is unsatisfactory for the reasons that the productive capacity of the machinery is limited to the manual dexterity of the attendant and that highly-trained and skilled labor must be employed to achieve the best results, much enhancing the prime cost of the rough spool-blanks.

The object of the invention is to obviate the abovedifficulties andfurnish for use a machine which shall be automatic in its operations, simple in construction, and inevery way highly eflicient underthe guidance of a cheaper kind of labor than thatrequired for the machinery employed in the method referred to. To the successful accomplishment of its objects, the invention consists of the constructions, combinations, and arrangements of mechanisms hereinafter set forth and claimed. 7

Referring to the drawings, 1 represents the .main frame or bed of the machine. On the top of this frame is shown a carriage 2 for holding spool-bar jaws 3. The carriage 2 can be moved to and fro on the top plane of the bed 1 and can be permanently fastened at any desired point by any suitable means.

4 is a rest for holding the free ends of the spool-bars as they are being carried forward by the operations of an automatic feed mechanism, which is composed of the 1 following parts, viz: upper and lower gripping-jaws 5 and 6, and standards 7 and 8 rigidly set in the lower jaw 6 and projecting upwardly through apertures in the upper jaw 5. The standards 7 are screw-threaded at their tops and provided with caps or nuts 9. Springs 10, either bow or spiral springs, are confined between the heads 9 and the top plane of the jaw 5. 8 are other standards, also rigidly set in the lower jaw. standard 8 projects through it for the purpose of holding it steady.

Spindles 11 extend from the rear of the lower jaw 5 to and through holes in the bar- 'rest 4. The spindles 11 are for steadying the feed-jaws and holding them level as they travel back and forth, feeding the spool-bar to the gripping-jaws, to behereinaft-er de-v In case a bow-spring is used the 1 scribed. On the under side of the jaw 6 is a post 12, to which is connected a shaft 13, running to and engaging withthe top end of a rocking bar or standard 14, pivoted to the end of the main frame 1 at thepoint 15. The lower end of the rocking standard 14. enters a path cut in the periphery of thepath-cam 16, carried on the power-shaft 17. ;By this arrangement the bar or standard 14 is rocked or turned about its pivotal pointv 15 as the powershaft revolves, carrying the path-cam 16 with it. Thus the jaws 5 and 6 are moved backward and forward as the rocking standard 14 sways, actuating the shaft13. To keep the weight of the jaws 5 and 6 from bending the shaft 13, a spring is placed directly under the shaft. The rocking bar 14. is slotted at its top end, so that by moving the end of the shaft 13 up or down in said slot thespeed of the feed of the jaws 5 and 6 can be lessened or increased, as desired. The end of the shaft 13 is provided with suitable means for adjusting its length to accord with the position in which the carriage 2 may be set. These means are represented at 13 and consist of a series of holes formed in the bar. The upper jaw 5 is provided with a pivoted dog 18, which in operation as the jaws move forward engages the butt-end of the spool-bar and forces it from the gripping-jaws 3.

The gripping-jaws 3, which are designed to rigidly hold the spool-bar while under the operations of the turning and boring. tools and cutting-off saw, are made to open and close automatically as follows: Arms 19 are pivoted on the carriage 2 at the points 20. One end of each bar 19'is firmly attached to the under side of a gripper 3 and extends therefrom toward the end of the main frame 1, where it is provided with a spindle 21, at the lower end of which a loose connection is made with an arm 22, which engages with a spindle 23,

movin back and forth with a cutter head car-v riage 24. 25 are-stout flat springs attached to the main frame-and bearing-hard against the spindles 21. Thus as. the carriage 24 moves away from the end of the main frame the arms 22 aredrawn with it toa V: shape, drawing the springs. together and spreading the jaws 3. On the return of the frame. 24 the springs 25 press the spindles 21 apart and firmly close the jaws 3, at which ti me the arms.

22 become straight.

The cutter-headcarnage 24 is worked backand forth by means. of a cam 26, upon which it rests. The cam 26 ispros 'ided-wi'th ashaft, carrying at its lower end abeveled gear 27', whichmeshes with a beveled gear 28, carried on the power-shaft 17. On its top planethe carriage 24 has suitablebearings29, in which a shaft 30 is journaled. The shaft 30 carries a head 31, which isprovided with any suitable mechanism for turning and boring the end of thespool-bar.

32: is a circular saw. carried on a shaft which finds proper-bearings at 33. The saw and beari-ngsare carried on. asliding bed. 34, working in proper slideways. in a frame 35. Thebed-34 is provided with a-stoutspri'ng36 for carrying it backward after it has. been over the'post 41, when the recoil of thespring 36 carries thebed 34' back to its original position.

The post 41 is provided with a loose friction-sleeve or roller 41 asshown. Thispost has at its lowerend a pin which engagesthe freeend of a flat spring 42; attached to the under side ofthe bed34. The arm 37 strikes against the post'41 and carries the bed 34, the combination permitting the said post to be depressed, as shown in dotted lines Fig. 3, along till a link 43 (seen on the under side of bed 34) is rocked to such an angle that the corner 44 strikes against the post 45 and trips the post41when' the spring 36 carries the bed 34 back. Thelink 43 is loosely connected to the'point 46. The other end is yoked to the bent-up end of the spring 42.

The machine is operated by powcrapplied to a pulley 47. The power through the gear 48 in mesh with gear 49 on shaft 17 is thus trans "mitted to cam 16 for actuating the feed mechanism and gripping mechanism and the cam 26, which actuatesthe carriage 24 in its con ne cted parts.

The operations of the machine are very 1 simple, and are as follows: A rough spool-bar "jis placed in the rest 4. The end is forcedbe- 'jtwe'en the feed-jaws 5 and 6, which by means {,of the pressure exerted by the springs 10 are 1: set forgiving on the end of the bar. Then as {the shaft 17 rotates the cam 16 is turned, im- E-parting rocking motion to the bar- 14, which tin turn actuates the feed-jaws 5 and 6. As the feed-jaws move up to the gripping-jaw 3, the jaws 3 close firmly'abou-t the spool-bar nd hold it in position, while thecutter-head 31 advances and turns and centers theend of bar. When the cutter -head retreats, the 2; rocking bar 37, turningonitspivot- 38, strikes g againstthe post 41 and carries the-saw up to its proper position for cutting off the turned {Fiand centered end ofthebar. Atthe instant {that the gripping-jaws 3 have firmly grasped thespoohbar the feeding-jawsfi and 6 begin to-- retreat and continue goin gbackwardwhile the-c-utter-head 31 and saw 32 are-performing gtheir functions. Just as the saw: is through iits-work and hasbeencarried back out of the twayby therecoil of the-spring 36 the gripiping-jaws 3openand the feeding-jaws ad- Vance and move the bar to receive again: the loperationsj 11st described.

In theoperations of the machine the advance of the feed-jaws, theclosing of the gripping-jaws, the advance and" retreat of the cutt-ing-head, and the advanceand retreatof the saw follow; each other with-rapidity. In a machine dri-venat ordinary speed the-above- "enumeratedoperations willall take-pl'ace-in a isecond of time or a-fraction thereof.

By arranging the machinewith feed mechanism, gripping-jaws,-turning and. centering devices: and saw: mechanisms at eitherend it is obviousthat the capacity or the machine can be doubled withoutmaterially 'enhan cin g {the cost of building.

What I claim asmy invention, and desire to-secure by Letterslatent, is-- 1-. In a machine for making rough spool:- blanks, the combination, with the feedingjaws, of the standards extending upwardfrom "the lower jaw, springs operating to normally close these jaws, spindles connected to the mvg'ese anism for reciprocating the jaws; consisting of a rocking bar operated by cam'mechanism with the main shaft and a rod connecting suchbar and jaws, substantially as shown'and described.

2. In a machine for makingrongh spoolblanks, the combination, with the feedingjaws, of mechanism for reciprocating said ment of the throw of the'jaws is permitted,

substantially as described;

3. In a machine for making rough spoolblanks, the combination, with the grippingjaws, of mechanism for operating said jaws, consisting of levers pivoted to the carriage and having connection at their outer ends with said jaws, a spindle operated by the" movement of the cutter-head carriage andhaving toggle connection with the inner ends of the said levers, and springs, as'described, secured to the frame and having connectionv with the inner ends of the pivoted levers, substantially as described. V I

4. In a machine for making rough spoolblanks, the combination, with a sliding bed having a circular saw mounted thereon and a pin, as described, of a rocking lever pivoted to the main frame and having connection with the cutter-head carriage and having the outerend thereof in engagement with said pin, substantially as described, and for the purposes set forth.

/ 5. In a machine for making rough spoolblanks, the combination,'with a sliding bed having a circular saw mounted thereon, of a rocking lever pivoted to the mainframe and having connection at its inner end with the cutter-head carriage and at its outer end with the sliding bed,a spring on the main frame, having connection with the sliding bed and ada'ptedto return said bed,the link pivoted to the frame, the post moving in an opening in the frame, and a spring connected with the post and with the link, the combination being and operating substantially as described, and for the purposes set forth.

In testimony that I claim the foregoing as my own I have affixed my signature in the presence of two witnesses.

JESSE M, BROWN.

' Witnesses: N. F. KENDALL,

e. BRIGGS;

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